John Murdoch is a fictional character from the 1998 film Dark City, directed by Alex Proyas. He is portrayed by actor Rufus Sewell and is the film's protagonist, who wakes up in a mysterious city with no memory of his past. As he navigates this strange environment, he discovers that he is being hunted by a group of beings known as the Strangers. Throughout the film, John Murdoch learns that he possesses unique abilities that allow him to manipulate the city and its inhabitants. His journey involves uncovering the truth about his identity and the nature of the city itself, ultimately leading to a confrontation with the Strangers and a quest for freedom.